The present invention relates to novel diazabicyclic substituted imidazo[l,2-a]pyrimidine- derivatives, to methods for producing the same, to the use thereof either alone or in combination for the treatment and/or prevention of diseases, as well as to their use for producing medicaments for the treatment and/or prevention of diseases, especially for the treatment and/or prevention of breathing disorders, including sleep-related breathing disorders such as obstructive and central sleep apnea and snoring.